crypt32: Remove dead assignments in cert.c (Cppcheck).

dlls/crypt32/cert.c

@@ -984,7 +984,7 @@ static BOOL container_matches_cert(PCCERT_CONTEXT pCert, LPCSTR container,
 {
     CRYPT_KEY_PROV_INFO copy;
     WCHAR containerW[MAX_PATH];
-    BOOL matches = FALSE;
+    BOOL matches;
 
     MultiByteToWideChar(CP_ACP, 0, container, -1,
      containerW, sizeof(containerW) / sizeof(containerW[0]));
@@ -1142,7 +1142,7 @@ static BOOL cert_prov_info_matches_cert(PCCERT_CONTEXT pCert)
 BOOL WINAPI CryptFindCertificateKeyProvInfo(PCCERT_CONTEXT pCert,
  DWORD dwFlags, void *pvReserved)
 {
-    BOOL matches = FALSE;
+    BOOL matches;
 
     TRACE("(%p, %08x, %p)\n", pCert, dwFlags, pvReserved);
 
@@ -2887,7 +2887,7 @@ static void CRYPT_SetBitInField(struct BitField *field, DWORD bit)
 
 static BOOL CRYPT_IsBitInFieldSet(const struct BitField *field, DWORD bit)
 {
-    BOOL set = FALSE;
+    BOOL set;
     DWORD indexIndex = bit / BITS_PER_DWORD;
 
     assert(field->cIndexes);
@@ -3099,7 +3099,6 @@ static void CertContext_SetKeyProvInfo(PCCERT_CONTEXT context,
                 CryptMemFree(szProvider);
             }
         }
-        size = sizeof(info.dwKeySpec);
         /* in case no CRYPT_KEY_PROV_INFO given,
          *  we always use AT_SIGNATURE key spec
          */